Patents by Inventor Yoshiharu Tsujikawa

Yoshiharu Tsujikawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Heat engine
    Patent number: 6336316
    Abstract: A heat engine is provided that can improve thermal efficiency of a gas turbine . When gas such as air enters a compressor C101 of a gas turbine apparatus 100 (state 1), the gas becomes high-temperature gas by a combustor B102 (state 3) and moves toward a turbine T103. Another turbine T104 is placed at the back portion of the turbine T103 where air of state 3 enters, the gas enters a first heat exchanger Hx 105 (state 4) and is supplied to a compressor C109 (state 5). Thereafter, the supplied gas is discharged from a compressor C112 (state 12) through a heat exchanger Hx106 of an intercooling portion 151, a compressor C110, a heat exchanger Hx107, a compressor C111, and a heat exchanger Hx108 (states 6 to 11).
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: January 8, 2002
    Assignee: Japan Science and Technology Corp.
    Inventors: Shoichi Fujii, Yoshiharu Tsujikawa, Kenichi Kaneko